To create a Circle – Radius and Angle surface do the following:

1.Select Support Curve. It can be a path, a route, an open profile, an edge or a sequence of smoothly-joint edges.

2.Select Guide. It can be a path, a route, an open profile, an edge or a sequence of smoothly-joint edges. It must entirely belong to the tangent face.

3.Select Tangent Face. It can be set by a face, a surface or a sequence of smoothly-joint faces.

4.Set Radius. The value can be constant or variable, set by the diagram.

5.Set Angle. The range for angle value is from -360° to +360°. The value can be constant or variable, set by the diagram. In case you use the diagram, the range is from -359,99° to 0 or from 0 to +359,99°. The diagram cannot switch from the negative to the positive area or vice versa. The abscissa axis of the diagram is the supporting curve length.

6.If necessary, enable Reverse Direction. Whether the flag is on/off, the tangent direction switches to the opposite. Combining angle parameters and reverse direction enables you to create a surface in any of the quarters of the symbolic coordinate system set by the initial surface and the directing curve.

7.Change or leave the default values for the parameters determining design accuracy.

8.Confirm the surface creation.

1. Support curve 2. Guide 3. Tangent face 4. Radius (ordinate axis) relative to the length of the support curve (abscissa axis) 5. Angle (ordinate axis) relative to the length of the support curve (abscissa axis) 8. Resulting surface |

6. Radius reverse derection |

6. Angle reverse derection |